Sprech Tenso-Structures Pvt. Ltd. Manufactures Curved Shape Structure Module. Sprech Tenso-Structures Pvt. Ltd. Is an ISO 9001:2000 certified company. Curved Shape Structure Module has the feature of rain water which is collected in the parametrical beams and channeled to the ground thru the vertical pillars. Curved Shape Structure Module is galvanized for long life. These modules can be conveniently added from sides. It is available in the brand name of TUNNEL MAX. It is used for walkways, restaurants, sit-out areas of resorts & hotels etc.